package com.huawei.Galenus.service;

import com.huawei.Galenus.domain.User;

import java.util.List;

public interface UserService {

    Integer save(User user);

    User findByUsername(String username);

    User findById(String id);

    List<User> getSingers();


    Integer changeType(String uid);

    int beMember(String uid);

    int enjoy(String uid, int amount);
}
